I am making a program that has a bunch of embedded if statements. I need random number that are between 0 and 1. In order to get really "random" numbers, I set up the program to get the seed from the cpu time. Then, to get the number between 0 and 1 I was planning to divide by the greatest possible random number from the random() function, but I can't figure out what it is. It is somewhere in the neighborhood of 300000000 ( I just guessed to get that).
melissa.johns
12
Newbie Poster
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randhasRAND_MAX, mayberandomhas something similar.http://c-faq.com/lib/randrange.html
http://c-faq.com/lib/rand48.html
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melissa.johns
12
Newbie Poster
Another option--Is there a way to put a limit on how big the random() function can be?? then I would know the max.
thanks!
Dave Sinkula
2,398
long time no c
Team Colleague
rand has RAND_MAX , maybe random has something similar.
http://c-faq.com/lib/randrange.html
http://c-faq.com/lib/rand48.html
melissa.johns
12
Newbie Poster
ok, I got the drand function working great. I doubt it is super random, but I will deal with that later. At least my numbers are in the right range now.
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